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Pay particularly close attention to the following A battery left deep-discharged for an extended period
may develop permanent damage in one or more cells. Such batteries may heat up excessively during high
current charging. Monitor the battery temperature during the first hour, then hourly there-after. Check for
unusual signs, such as bubbling or leaking electrolyte, heightened activity in one cell compared to others, or
hissing sounds. If at any time the battery is uncomfortably hot to touch or you notice any unusual signs,
DISCONNECT THE CHARGER IMMEDIATELY.
NOTES ON TEST RESULTS:
1. For any test result other than green #5, disconnect the battery from the electrical system it supports, and
reconnect the OptiMate. If a better test result is now obtained, this suggests that the power losses are partly
due to an electrical problem in the electrical system and not in the battery itself. If the poor result persists,
you are advised to take the battery to a professional service workshop equipped with professional equipment
for a more thorough investigation.
2. If the red LED #6 flashes / blinks, a significant problem exists. The battery's voltage is not being
sustained or despite recovery attempts the battery was irrecoverable. This may be due to a defect in the
battery itself, such as a short-circuited cell or total sulphation, or, in the case of a battery still connected to
the electrical system it supports, the red LED #6 may be signalling a loss of current through deteriorated
wiring or a degraded switch or contact, or in-circuit current-consuming accessories. A sudden load being
switched on while the charger is connected can also cause the battery voltage to dip significantly.
3. GOOD TEST RESULT, but the battery cannot deliver sufficient power: Batteries near end of life may appear
to hold voltage immediately following charging, but cannot any longer deliver power on demand. Permanent
damage within the battery, such as an internal degraded intercell connection, or a poor external battery
terminal, will also inhibit power delivery. Check external connections, or have the battery professionally
tested.
MAINTAINING A BATTERY FOR EXTENDED PERIODS: The OptiMate 24-7 maintenance program will safely
maintain a battery in good condition for months at a time. Recommended: At least once every two weeks,
check that the connections between the charger and battery are secure, and, in the case of batteries with
filler caps on each cell, disconnect the battery from the charger, check the level of the electrolyte and if
necessary, top up the cells (with distilled water, NOT acid), then reconnect. When handling batteries or in
their vicinity, always take care to observe the SAFETY WARNINGS described within this instruction.
ECO POWER SAVING MODE WHEN THE CHARGER IS CONNECTED TO AC SUPPLY:
The power converter switches to ECO mode when the charger is not connected to a battery resulting in a
very low power draw of less than 0.5W, equivalent to power consumption of 0.012 kWh per day. When a
battery is connected to the charger power consumption depends on the current demand of the battery and
its connected vehicle / electronic circuitry. After the battery has been charged and the charger is in long term
maintenance charge mode (to keep the battery at 100% charge) the total power consumption is estimated to
be 0.024kWh or less per day.
Learn more about battery chargers and jump starters we have.
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